Improved detachable boot and shoe-heel



aan para oHARLEs W. BAILEY, .or

.v BOSTON, MASSACHUSETTS.

Letters Patent No. 106,984, dated September 6, v1870.

IMPROVED .DETACHABLE BOOT AND SHOELHEE'L.

The Schedule referred to in these Letters Patent and making part of the same To all whom fitmay concernJ Be it' known that I, GnARLEs W. BAILEY, of Boston,'in the county ot' Suffolk and State of Massachusetts, have invented a new and useful Improvement'iu Detachable Boot and Shoe-Heels;'and I do hereby declare that the following, taken -in connection with the drawing which accompanies and forms part ot' this specification, is a description of my in cured respectively to the sole and the heel; that attached to the sole conforming in outline thereto, and having a centralcircular portion cut away; around which circle radial slots are cut, the tongues of metal between the slots having one edge raised above the plane of the adjacent surface, the plate secured 'to the heel having formed upon it, around a common center, radial tongues, which also are raised at one edge, giving them a slight pitch, whereby they are, by a rotary movement of the heel, locked into the tongues formed upon the opposite plate, and when thus locked are secured in place by a spring catch, or other equivalent device, vas will be hereinafter more fully described. f

Figure I is an under-side view of the clamping-plate secured thereto;

Figure 2 is a top lview of the heel, with its clamping-plate secured upon it;

Figure 3 is a longitudinal vertical section, taken in the axis of the shoe, and showing the heel locked to the sole by the clamping-plates;

Figure 4 is an under-side view, showing the heel and sole as united by my invention;

`Figure 5 shows a modiiic'ation of the lockingde vice and Figure 6 is a side elevation or. edge view of the clamping-plate which is attached to the heel, and showing the pitch of the radial tongues formed upon the plate.

Similar letters of reference indicate corresponding parts in the several gures.

In the drawing'- A represents a section of the sole, and

B is the heel.

a is a thin metallic plate, having its curved outline corresponding to sole A, as shown; a central circular portion of this plate is cut away, as shown, and around this circular space short radial slots, b, are out in the remaining metal.`

The tongues of metal marked e, thus formed by slots b, are twisted slightly out of the plane ot', plate a., so that they have a. pitch in the same direction as a right-hand screw.

plate is secured to solo Aby 'a series of screws sole, with its or nails passing through it' into the sole nearits outer periphery, as shown.

'The heel B has a shallow recess or cavity formed in it, as shown-at d, iig. 2, in which is secured, by nails, as shown, the serrated plate e, the projections f upon which being formed around a common cente`r, and at the saine distance from each other as the slots in plate a, while the diameter'of plate e, inside the'bases of projections f, corresponds to the circular opening in plate a.

The projections f are like tongues c, slightly twisted out of' theaA plane of plate e, and so as to impart to them thesame pitch as tongues c, the pitch ot' both being plainly shown in iig. 6.

The plates a and e being thus correspondingly formed, and secured in their respective places, the heel is readily and firmly, clamped to the sole by the simple process of engaging the projections f in the slots b, and then imparting to the heel a right-hand rotary movement, when, by the action of the two inclines, before described, the heel is drawn closely to the sole; the relative positions of the clamping-'devices upon the heel and sole being so arranged as that, when the latter are thus closely united, they occupy such positions as that their'outlines correspond, each with the other, and the contact of projections fand tongues e is plainly shown in iig; 3.

For the purpose of locking the heel in position when thus clamped to the sole, a narrow slide, g, is fitted in the heel-beneath plate e, While a zigzag spring, h, is inserted in the heel 'beneath the slide, and, by its expansive action,.tend s constantly to draw the slide within the heel.

In iig. 3 the arrangement of slide g and springh is plainly shown, the spring acting between a shoulder in the .heel and a descending angle of the slide, while outside the heel a similar angle of the slide serves as the means of drawing itA forward when the heel is to be removed.

A stud, e', attached to slide g, enters slots, j, formed in plates a and e, thereby locking them in position. v

v In fig. 5 the clamping-plates a e are shown, formed` with a projection, k, through which a screw passes into the sole, thus securing the heel from becoming loose by rotating, and accomplishing the same result as slide g.

` I do npt claim the slide y and spring h; nor do I I claim the heel B, substantially the same having been patented by me on the 9th day of November, 1869; but

What I do. claim as new, and desire to'secure by Letters Patent, is

Theldmpingmlates a and e, when constructed with the radial' inclined" catches cpcsandjf, and arranged to operate substantially as and for the purposes speciied. I

CHARLES W. BAILEY.

Witnesses:

E. F. HALL, T. W. .P oacrnn. 

